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Navigation Aids:
The above Site Diagram is included to provide insight in the structure of an illustrative site; it does not represent the more complex structure of this site. In the above diagram, there are 3 tiers. The first tier (HOME) has only one chapter; it is an introductory chapter. The first chapter along tier 2 is an IMAGE MAP; buttons within this chapter provide information about, and access to, all the other chapters. The remaining chapters along tier 2 are textual chapters. All the chapters of tier 3 provide a demonstration of the pathology of the respective disease. HOME is the primary “parent” of 5 chapters along tier 2. In turn, 3 of the chapters along tier 2 are “parents” for chapters along tier 3. Chapter Text 1 is a parent for 3 “child” chapters; Chapter Text 2 is the parent for 2 “child” chapters; and Chapter Text 4 is the parent chapter for 4 “child” chapters. The Parent/Child relationship is important when using navigation bars to maneuver among the tiers by using the Up and Down bars at the end of each chapter. For example, if at Chapter Text 1, a click on the Down bar will take the reader to the respective first child chapter (Visual Aid Chapter). If at any of the 3 child chapters of Chapter Text 1, a click on the Up bar will take the reader to Chapter Text 1. If at any of the 5 chapters along tier 2, a click on the Next or Previous bar will move one chapter ahead or one chapter back, respectively. Along tier 2, it is possible to access all the chapter in order, either forward or backward along the tier. At either the Next or Previous extremity of tier 2, a click on the bar leading to either of the respective extremities will take the reader to the opposite extremity; movements along the tier are not terminated if additional, identical clicks are repeated; once an extremity is reached, an additional click on the respective bar will take the reader to the opposite extremity and movement along the tier begins again. If at one of the first 3 chapters along tier 3 (all of which are children of Chapter Text 1) movements with the Next and Previous buttons as described will be limited - only the 3 children of Chapter Text 1 will be accessible. To access either of the other 2 groups of children along tier 3, using the Next or Previous buttons, the reader must first move up to tier 2 using the Up button; this click will take him to Chapter Text 1 (i.e., the parent chapter). Then, depending on the chapter of choice along tier 3, the reader can use the Next or Previous button to access the appropriate parent. Having gained the desired parent, a click on the down button will take the reader to the first child chapter of the respective cluster. Having suffered through all of this, the reader can then access his selected chapter by using either the Next or Previous button (assuming the first child chapter of the cluster on the 3rd tier is not his choice.
The actual site is structured in 4 tiers. The first tier is a single chapter (Home); it provides an introduction to both textual material on tier 2, and pictorials on tier 3. There are 7 chapters on tier 2; these chapters are all textual. The first chapter on tier 2 is this Image Map. The other 6 chapters are all parent chapters, each being a parent for groups of two or more pictorial chapters along tier 3. Ch2T1 (chapter 2, textual chapter 1) is a parent for 5 children (pictorial chapters Ch8-12); this clustering of chapters in relationship to a parent chapter along tier 2 has implications in regard to the utility of the navigation aids: Up, Down, Next, and Previous. If at tier 3, Ch8, a click on the Up bar will take the reader to parent chapter, Ch2T1. The Down bar would take the reader to the respective first child chapter (i.e., first of the respective cluster) along tier 4. Along tier 4, the Down bar would be inoperative; there is no tier 5. The Next bar would take the reader in sequence through chapters, Ch8-12. An additional click would take the reader back to Ch8, additional clicks on the Next bar would repeat the sequence. The Previous bar would sequence through the same chapters, but in a reverse direction. If at Ch2aT1a, the Next or Previous bars would take the reader in forward or reverse sequence to the chapters along tier 2. The Up bar would take the reader Home. The Down bar would take the reader to the first child chapter of the group of children along tier 3, Ch8P1. Chapters on tier 4 are deviations from the basic materials of this Section. In them, the pathology of various related follicular diseases, or tumors is presented; structurally, they are “child” chapters (progeny) of chapters on tier3. A representation of this site is available in Ch8.
For all the aids to navigation in the following list, a click on most of the underlined items will take the reader to figure 1 of the respective chapter. The “P” component, in each label, identifies the chapter as one of a group of pictorials; the associated number identifies where the selected chapter resides in the sequence of chapters along tier 3. The number associated with the “Ch” item identifies a place in the sequence from Home, through all the chapters along tier 2, to, and through, all the chapters along tier 3. For example Ch9 is the ninth chapter in sequential movements from Home, then along tier 2 to its end, and then along tier 3. On the other hand, Ch9 is the same chapter as P1.
With reference to the cluster of navigation bars in the Master Border to the left, the chapters might appear to be out of numerical order. In sequence, the first bar provides access to Chapter 1 (Home). The second bar is labeled Image Map; it provides access to the first chapter (Ch2a of tier 2). The next bar provides access to chapter 2; this is the second chapter of tier 2 and the first parent chapter of tier 2; its ten children along tier 3 include Ch9 throug Ch14b. In turn, Chapters 10, 13, 13a, and 14a are parents for children along tier 4. Chapter 13 is the parent for 5 chapters. Chapter is a parent for one chapter along tier 4. Chapter is the parent for one chapter along tier 4. Chapter 14a is the parent for four chapters along tier 4. These eleven chapters along tier 4, as well as the ten chapters along tier 3 are listed in the cluster to the left before the reader will encounter Chapter 3. This pattern of sequencing the navigation bars is repeated throughout the cluster from top to bottom.
SECTION DIAGRAM:
Section Diagram 1
Section Diagram 2
Image Map:
Tier 3:
Ch9P1: Follicular anagen patterns (hair bulb & sheaths);
Ch10P2 (parent ch for 33a, 34a, 34b, 34c): Follicular anagen patterns;
Ch11P3: Follicular anagen & catagen patterns;
Ch12P4: Patterns of the follicular inconstant portion;
Ch13P5 (parent ch for 34): Constant and inconstant portions;
Ch13aP5a (parent ch for 35): Catagen patterns & visual aids [F4-6];
Ch14aP6a (parent ch for 36, 37, 38, 39): Sebaceous glands & catagen patterns (including patterns in an immature NSJ [F5-]);
Ch14aaP6aa: Continuation of NSJ (F1); Atypical Seborrheic Keratosis (including pattern of melanoacanthoma) [F2-];
Ch14aaaP6aaa: Inverted follicular keratosis;
Ch14bP6b: Tricholemmoma;
C14P6 & Ch15P7: Folliculogenic myxoma;
Ch16P8, Ch17P9, Ch18P10, and Ch19P11: Compound follicular tumor (catagen-like & matrical patterns;
Ch20P12, Ch21P13, and Ch22P14: Compound follicular tumor (catagen-like component & sebaceous epithelioma);
Ch23P15: Tricholemmoma (blastomatous component);
Ch24P16 (parent ch for 39a, 39b, 39c)): Tricholemmoma (blastomatous component);
Ch25P17: Tricholemmoma (catagen-like & sebaceous divergent differentiation);
Ch26P18 (parent ch for 40a -40b): Tricholemmoma (catagen-like & sebaceous divergent differentiation);
Ch27P19 (parent ch for 40c -40d): Tricholemmoma with sebaceous gland hyperplasia;
Ch28P20: Catagen-like tricholemmoma (sclerosing entrapment);
Ch29bP21b: Tricholemmal basosquamous CA;
Ch29cP21c: Tricholemmal basosquamous Ca;
Ch29aP21a (parent chs 41a-41b): Low grade basaloid tricholemmoma CA;
Ch29P21 (parent ch for 41, 42, 43, 44, 45): Continuation of Ch29a, then, 1st part of presentation of irritated seborrheic keratosis;
Ch30P22: Continuation of Ch29, then, presentation of catagen-like tricholemmoma (so-called inverted follicular keratosis);
Ch31p23: Catagen-like tricholemmoma (so-called inverted follicular keratosis);
Ch32aP24a, & Ch32P24: Mixed tumor-like tricholemmoma;
Ch33P25 (parent ch for 46): Tricholemmomal CA;
Tier 4:
Ch33aP25a: Fibofollicular hamartoma;
Ch34aP26a: Molluscum contagiosum;
Ch34bP26b & Ch34cP26c: Pilomatrixoma;
Ch34P26: Vellus hair cyst;
Ch35P27: Catagen-like tricholemmal (pilar) cyst;
Ch36P28: Steatocystoma;
Ch37P29: Giant Pore;
Ch38P30 & Ch39P31: Proliferating catagen-like tricholemmal tumor;
Ch39aP31a: Catagen-like tricholemmoma (focal lymphoepitheliomatous change);
Ch39bP31b & Ch39cP31c: Catagen-like tricholemmoma (sclerosing entrapment);
Ch40aP32a: Atypical sebaceous cyst & sebaceous adenoma (two separate lesions);
Ch40bP32b: Sebaceous adenomas (two);
Ch40cP32c: Atypical tricholemmoma;
Ch40dP32d: Tricholemmoma (mixed anagen-like and catagen-like patterns, including sclerosing entrapment);
Ch41aP33a, and Ch41bP33b: Catagen-like tricholemmoma (sclerosing entrapment);
Ch41P33 & Ch42P34: Pigmented tricholemmal CA;
Ch43P35: atypical catagen-like tricholemmoma;
Ch44P36: Carcinoma (tricholemmal variant?);
Ch45P37: Atypical giant catagen-like tricholemmoma;
Hair Matrix Tumor (unpublished observations - text only)
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